A grand challenge in nanoparticle catalysis is to probe the three-dimensional (3D) atomic surface structure of single nanoparticles. While modern electron microscopy offers atomic-resolution capabilities, it is typically conducted in transmission mode producing only 2D images. However, technologies are emerging for converting series of 2D images into a 3D image.
Your task will be to investigate quantitative imaging techniques and mathematical reconstruction algorithms that enables 3D atomic-resolution imaging. Specifically, you will acquire atomic-resolution images of metallic nanoparticles and quantitatively analyze their contrast patterns with 3D structure determination as the ultimate goal.
Your work will be an important contribution to the ambitious efforts in DTU Physics’s new VISION center for visualizing catalyst processes at the atomic-scale. The work will partly be conducted at the unique electron microscopy facility at Haldor Topsoe A/S.
Experience with one or more of the following topics will be needed: electron microscopy, image processing, programming, nanoparticle characterization, surface science.